#40573F

#40573F

Color Values

HEX

#40573F

RGB

64, 87, 63

HSL

117.5, 16.0%, 29.4%

HSV

117.5, 27.6%, 34.1%

CMYK

26.4%, 0.0%, 27.6%, 65.9%

OKLCH

0.4305 0.048 143.7

Properties

Cool Dark Nearest: RAL 7009 Green Grey

Color Harmonies

Complementary

#40573F

#563F57

Analogous

#4C573F

#3F574A

#40573F

Triadic

#40573F

#3F4057

#573F40

Split Complementary

#40573F

#4A3F57

#573F4C

Tetradic

#40573F

#3F4C57

#563F57

#574A3F

Color Blindness Simulation

Original

#40573F

Protanopia

#4A4A45

Deuteranopia

#494746

Tritanopia

#41494A

Achromatopsia

#505050

CSS Usage

background-color: #40573F;
color: #40573F;
border-color: #40573F;
Nearest Tailwind: Emerald 900 #064E3B

Tailwind Shades

50
#F6F8F6
100
#EBF0EB
200
#D6E1D6
300
#B9CCB8
400
#93B092
500
#6D946B
600
#577656
700
#465F45
800
#364A36
900
#2A3729
950
#1B231A

Contrast Checker

Text on white

7.92:1

AA Pass AAA Pass

Text on black

2.65:1

AA Fail AAA Fail

Related Articles

Tutorials

Building a Color Picker Web Component from Scratch

Feb 20, 2026
Tutorials

Web Color Performance: Gradients, Shadows, and Filters

Feb 19, 2026
Tutorials

Tailwind CSS Colors: Complete Shade System Guide

Feb 19, 2026